Renovation of lubricating oils



March 8, 1932. L. D. GRlsBAuM 1,848,124

RENOVATION oF LURI-'CATING oILs Filed April so, l1927 Patented Mar. 8, 1932 Y UNITED STATES.

LEONARD D. GRISBAUM, or I'1annuaire(5ms,yI1\I1)'In'1\jm.,v ASSIGNORTO'RAILWAY sEnvIcE a SUPPLY conroRAmIoN, or Iivnmivaroms,IIWDIANA,Av conronATIoN QFINIJIANA` RENOVATION or orns Application filed .April 30, 1927, fserial No: 18"'13918'79; I

This invention relates to renovation of lubricating oils, and the present application is, in part, a division and, in part, acontinnation of my copending application Serial No. 7 1,949, fil-ed December 12, 1925.'

Specifically, the present application relates to apparatus for use in Washing treating chemicals from oil, and in vseparating entrained water from the oil. I

The primary objects of the invention are' the provision of a method and apparatus which will accomplish the above mentioned washing and/or separating in a much more expeditious and elfective manner than has been possible heretofore.

' How these, together with other objects and advantages are obtained will be clear from the following description and the accom-V panying drawing which illustrates, in vertical section, the preferred embodiment of the apparatus.

A The apparatus comprises a tank 1 having an oil inlet pipe 2 which passes through the tank wall adjacent the bottom thereof, and turns upwardly at 3. The inlet terminates within a bell 4 positioned in the bottom of the tank. A plurality of openings 5` are provided in the top of the bell t.

A number of perforated diaphragme 6 (two are shown in the drawing) are disposed horizontally in the tank at spaced intervals be-4 tween its top and bottom. l

At the top of the tank I .provide what I have termed a pancake. heating' plate7 7.

This plate 7 is hollow and is substantially conical in conliguration.v The plate is pro-- vided with connections 8 and 9 for admission and exhaust ofsteam. AnV oil overflow out# let 10 is positioned at the highestpoint of the plate 7. i n

Above the plate 7 is a collecting cone 11 which has an overflow outlet 12 at its apex. This cone 11 may be 'set slightly 0E the hori zontal so that the oilvflowing over itrwill able meter 14 for inspection, orito someother point for use, storage or further treatment. Water'inlet and outletpipes` 15, and 16,

. cals. collect at a point adjacentthe outlet 13 from where it may be delivered either to some suitof treating l,chemicals fromvoils, orto sepa.V

rateE and dissipate entrained water in the oil, o'rbothf' 1Oil, in -a conditionv substantiallyfas above described, is delivered to the tank 1 through the inlet 2. The oil lillsthe tank and passes upwardly toithe outlet 12. In-its progress upwardly it comes-in Contact withthe fitting 4'`and`the perforatedl dia'phragms 6 'which tend'toispre'ad the voil 'over the entire `hori# l zontalfsectional'area of the tank andbreak 70 i' itup intovmanyf fine streams. This vallows any'ffreel water which may be entrained 'inf thev oilftol separate, vand the Water having a` higher specii'cgravity than the; oil will sub-'l side'to the bottom of the tank below the oil Y inlet. f As 4this water 4accumulates may be drained from 'the tank through the outlet 16:- QAdjaent the top of thetank the oilfcone'- tactswith'the plate7 whichismaintained atv temperature substantially 'abovev the boiling' point 'of water,say, 250o F. As the oil passesl Vthrough V,the relatively small outlet' 10 and flows over the upper side of the plate7 sub-- stantially all the oil is subjected to the tem-4 perature'ofv the plate and any Water which may still remain entrainedis vaporiz'ed-and escapes upwardly through the openings 10 and.12 and/or around the circumference of the plate 7 which is preferably made slightly lessthan the inside diameter oftheitank.

Finally the oil rises and passes through the overflow outlet 12 to the opening'rl. Y

The foregoing operation of the' apparatus is preferred where the oiljbeing treated contains substantially none of the treating chemi- If the oil being stantial quantity of chemicals or`other extraneous matter, I prefer to admit' Water to n the tank to'brng itsupper'surface up to a level varying between a point well above the 10U f 95,v treated contains a suboil inlet and a point a little belowthe periphery of the plate 7 In this case the fine streams of oil created by the litting 4 and the diaphragms 6 are subjected to the scouring action of the water as it passes upwardly therethrough. The action of the heating plate 7 is, of course, the same asabove stated;

In concluding, it is to be noted that I have developed an efiicient and effective apparatus for separating :treating chemicals andl enl trainedwat'er from oil without the off any means which will produce violent agitatioinl. such agitation being detrimental,as ittextds:V to emulsify the oil.

I prefer to locate the pointi'rfroh which oil to be treated is djeliveredtojthe inletpipe 2 above the level of the to Y of the tankl: in order that the oil will 'ow therethrough without the necessity of pumping.

clamr-ru l. Apparatus` for separatingV entrained water from reclaimed oil including a tanlga perforated diaphragm inthe tank,an oil oju'tuqy let near the top ofthe tank, a heatingV element adjacent sadoutlet and means .forjintroducf ing the oil into the tank below the diaphragm to flow upwardly through the, diaphragm, contactwith said heating element and" flow out through said outlet.

2. Apparatus for separating en'trained;i Water from reclaimed oil including a`-tannlgiar perforated diaphragm inthe tank, aiheatingelement near the top of the tanlQanoil'overf' flow outlet in said element and means Vforintroducing the oil into the tank below the diag'V p phragm to flow upwardly' through the dia;

phragm, Vcontact with said heating element and flow out through said outlet;

3. Apparatus for separating entraind Water from reclaimed oil including atank,a perforated diaphragm in the tank, a conicall-y'` shaped heating element near the top off-,the tank having Van oil overflow outlet through its-apex andmeans for introducingthegwoil.

-into the tank below the diaphragm to' flow.l

upwardly through the diaphragm, contactv with Vsaid heating element andv flow out through said outlet. M

`In testimony whereof I have hereunto signed my name.

LEONARD n. GR'ISJBAM 

